ul
{
    list-style-type:none;
    margin:0;
    padding:0;
    width:200px;
    background-color:#f1f1f1;
}
li a
{
    float:inherit;
    display:block;
    color:#000;
    padding:8px 16px;
    text-decoration:none;
}
/*li a:hover*/
/*{*/
    /*background-color:#555;*/
    /*color:white;*/
/*}*/
.dropdown
{
    position:relative;
    display:inline-block;
}
.dropdown-content
{
    display:none;
    position:relative;
    background-color:#f9f9f9;

    min-width:160px;
    box-shadow:0px 8px 16px 0px rgba(0,0,0,0.2);
    padding:12px 16px;
    z-index:20;
}
.dropdown:hover .dropdown-content
{
    display:block;
}